--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5952598482 dns-udp-queries-received-ipv6: 1197037572 dns-tcp-queries-received-ipv4: 557881359 dns-tcp-queries-received-ipv6: 100879495 dns-udp-responses-sent-ipv4: 5494239716 dns-udp-responses-sent-ipv6: 1194341465 dns-tcp-responses-sent-ipv4: 393139744 dns-tcp-responses-sent-ipv6: 100910195